Color wheel and assembly method thereof

ABSTRACT

A color wheel including a first sheet, a second sheet, a ring filter and a motor is provided. The second sheet is disposed opposite to the first sheet, and has positioning pins. The ring filter is disposed between the first sheet and the second sheet, and has a plurality of positioning holes. The positioning pins are disposed through the positioning holes and connected to the first sheet. The motor includes a turntable and an axis connected to the turntable, and a positioning portion is disposed on the top of the axis. The positioning portion includes at least two locking hooks, and a notch is disposed between the locking hooks. The notch is suitable for accommodating the locking hooks with deformation. Moreover, the first sheet, the second sheet and the ring filter are disposed through the axis and fixed on the turntable. The reliability of the color wheel is better.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of Taiwan applicationserial no. 95111893, filed Apr. 4, 2006. All disclosure of the Taiwanapplication is incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a color wheel and assembly methodthereof. More particularly, the present invention relates to a colorwheel with high reliability and production efficiency and assemblymethod thereof.

2. Description of Related Art

A common digital light processing (DLP) projection device includes alighting system, a digital micromirror device (DMD), and a projectionlens. The lighting system is adapted to provide a light beam andincludes a color wheel and a lens. The light beam after being filteredthrough the color wheel is converged by the lens and projected on theDMD. The DMD has a plurality of micromirrors which respectively displayON, OFF, or FLAT status so as to convert the light beam into an imagelight beam. The projection lens is adapted to project the image lightbeam to display an image on a screen.

Referring to FIG. 1, a conventional color wheel 100 includes a ringfilter 110, a washer 120 and a motor 130. The ring filter 110 comprisesa plurality of sub-filters 112 in an arrangement. Each sub-filter 112 isindividually adhered on the motor 130 by dot gluing, and the sub-filters112 are not adhered to each other. The washer 120 is disposed above thering filter 110 and is adhered to the motor 130 by dot gluing. However,as the glue quality is not easy to control and the glue may getdeteriorated and carbonized after the long time operation of the motor,the sub-filters 112 may fly out while the motor 130 is rotating in highspeed. In addition, as the conventional color wheel 100 is adhered bydot gluing, the assembly condition requires to be controlled accurately,which is time consuming and low throughput. Furthermore, if any of thecomponents are not properly assembled, it can not be reassembled or itis difficult to reassemble, therefore, the quality of the color wheel100 is not easy to control.

SUMMARY OF THE INVENTION

Accordingly, the present invention is related to a color wheel, whichreduces the possibility of the sub-filters of the ring filter fromflying out and thereby improve the reliability.

Other features and advantages of the present invention will be furtherunderstood from the further technology features disclosed by the presentinvention wherein there is shown and described a preferred embodiment ofthis invention, simply by way of illustration of one of the modes bestsuited to carry out the invention.

The present invention is also directed to an assembly method of colorwheel for improving the reliability and production efficiency of thecolor wheel.

In order to achieve one, some or all of the aforementioned advantages,one of the embodiments of the present invention provides a color wheel,including a first sheet, a second sheet, a ring filter and a motor. Thesecond sheet is disposed opposite to the first sheet, and has aplurality of positioning pins. The ring filter is disposed between thefirst sheet and the second sheet, and has a plurality of positioningholes. The positioning pins are disposed through the positioning holesand connected to the first sheet. The motor includes a turntable and anaxis connected to the turntable. A positioning portion is disposed onthe top of the axis. The positioning portion includes at least twoparts, and a gap is disposed between the portions. The gap is suitablefor accommodating with the deformation of the parts during assemblingthe first sheet, the second sheet, and the ring filter on the motor. Inaddition, the first sheet, the second sheet and the ring filter passthrough the positioning portion and rest on the axis, and the parts ofthe positioning portion are suitable for fixing the first sheet, thesecond sheet, and the ring filter on the turntable.

In accordance to the one, some or all of aforementioned objects or otherobjects, another embodiment of the present invention further provides anassembly method. First, a ring filter comprising a plurality ofpositioning holes formed thereon is provided. The ring filter isdisposed in a mold. Next, a first sheet, a second sheet and a pluralityof positioning pins are formed in the mold. The multiple positioningpins are suitable for connecting the first sheet and the second sheetthrough the positioning holes. Next, the first sheet, the second sheetand the ring filter are fixed to a motor.

In accordance with the one, some or all of aforementioned objects orother objects, another embodiment of the present invention furtherprovides a color wheel, including a carrier table, a plurality ofsub-filters and a motor. The carrier table has a plurality ofprotrusions, and the multiple protrusions are disposed adjacent to thesurrounding edge of the carrier table. The sub-filters are disposed onthe carrier table, and each sub-filter is disposed between the twoadjacent protrusions. Each sub-filter has a first positioning notch anda second positioning notch. A part of the side wall in the firstpositioning notch of each sub-filter is disposed against the inner wallof one of the two adjacent protrusions, and part of the side wall in thesecond positioning notch is disposed against the outer wall of the otherpositioning protrusion. Moreover, the motor is fixed to the carriertable and the multiple sub-filters.

In summary, by disposing the positioning pins through the positioningholes or by disposing the sub-filters between the two adjacentprotrusions of the carrier table, the possibility of sub-filters flyingout due to deterioration of the glue while the motor is rotating in highspeed as in the case of conventional technology may be effectivelyreduced. Therefore, the color wheel of the present invention has betterreliability. Moreover, the first sheet, the second sheet, and the ringfilter pass through the positioning portion and rest on the axis, to befixed on the turntable. Therefore, the assembly method of color wheel issimpler and easier.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide a furtherunderstanding of the invention, and are incorporated in and constitute apart of this specification. The drawings illustrate embodiments of theinvention and, together with the description, serve to explain theprinciples of the invention.

FIG. 1 is an exploded view of a conventional color wheel.

FIG. 2A and FIG. 2B are respectively schematic perspective views of thecolor wheel viewed from different angles according to the firstembodiment of the present invention.

FIG. 2C is a cross-sectional diagram of the assembly of the color wheelin FIG. 2A.

FIG. 3 is a schematic block diagram of the assembly method of colorwheel according to one embodiment of the present invention.

FIG. 4A and FIG. 4B are schematic diagrams of the formations of thefirst sheet and the second sheet.

FIG. 5A is an explosion diagram of the color wheel according to a secondembodiment of the present invention.

FIG. 5B is a schematic diagram of the color wheel in FIG. 5A.

FIG. 6A and FIG. 6B are the schematic diagrams of the sub-filters andthe carrier table in FIG. 5A respectively.

FIG. 6C is a schematic diagram of the assembly of the sub-filters andthe carrier table in FIG. 5A.

DESCRIPTION OF EMBODIMENTS

In the following detailed description of the preferred embodiments,reference is made to the accompanying drawings which form a part hereof,and in which is shown by way of illustration specific embodiments inwhich the invention may be practiced. In this regard, directionalterminology, such as “top,” “bottom,” “front,” “back,” etc., is usedwith reference to the orientation of the Figure(s) being described. Thecomponents of the present invention can be positioned in a number ofdifferent orientations. As such, the directional terminology is used forpurposes of illustration and is in no way limiting. On the other hand,the drawings are only schematic and the sizes of components may beexaggerated for clarity. It is to be understood that other embodimentsmay be utilized and structural changes may be made without departingfrom the scope of the present invention. Also, it is to be understoodthat the phraseology and terminology used herein is for the purpose ofdescription and should not be regarded as limiting. The use of“including,” “comprising,” or “having” and variations thereof herein ismeant to encompass the items listed thereafter and equivalents thereofas well as additional items. Unless limited otherwise, the terms“connected,” “coupled,” and “mounted” and variations thereof herein areused broadly and encompass direct and indirect connections, couplings,and mountings. Similarly, the terms “facing,” “faces” and variationsthereof herein are used broadly and encompass direct and indirectfacing, and “adjacent to” and variations thereof herein are used broadlyand encompass directly and indirectly “adjacent to”. Therefore, thedescription of “A” component facing “B” component herein may contain thesituations that “A” component facing “B” component directly or one ormore additional components is between “A” component and “B” component.Also, the description of “A” component “adjacent to” “B” componentherein may contain the situations that “A” component is directly“adjacent to” “B” component or one or more additional components isbetween “A” component and “B” component. Accordingly, the drawings anddescriptions will be regarded as illustrative in nature and not asrestrictive.

The First Embodiment

FIG. 2A and FIG. 2B are respectively the schematic perspective views ofthe color wheel from different view points according to the firstembodiment of the present invention, and FIG. 2C is a cross-sectionaldiagram of the assembly of the color wheel in FIG. 2A. Referring toFIGS. 2A-2C, a color wheel 200 according to the present inventionincludes a first sheet 210, a second sheet 220, a ring filter 230 and amotor 240. The second sheet 220 is disposed opposite to the first sheet210 and has a plurality of positioning pins 222. The ring filter 230 isdisposed between the first sheet 210 and the second sheet 220, and has aplurality of positioning holes 232. The positioning pins 222 aredisposed through the positioning holes 232 and connected to the firstsheet 210. The motor 240 includes a turntable 242 and an axis 244connected to the turntable 242, and at least a first and a secondpositioning portions 246 a, for example. The turntable 242 may be a partof the motor 240, or additional element disposed on the motor 240. A gapS is disposed between the two positioning portions 246 a. The gap S issuitable for accommodating with the deformation of the positioningportions 246 a. In one embodiment, the positioning portions 246 a may beflexible. Therefore, the positioning portions 246 a moves toward to thegap during assembling the first sheet 210, the second sheet 220, and thering filter 230 on to the motor 240. In another embodiment, it is notrequired that the two positioning portions 246 a are flexible and it isenough that one of the positioning portions 246 a is flexible. Inaddition, after assembling the first sheet 210 and the second sheet 220,the ring filter 230 is disposed through the positioning portions 246 aand sleeved on the axis 244 so as to fix the first sheet 210, the secondsheet 220, and the ring filter 230 on the turntable 242.

The ring filter 230 comprises, for example, a plurality of sub-filters234 in an arrangement, and the multiple positioning holes 232 arerespectively disposed in the sub-filters 234. In one embodiment, thesub-filters 234 are prevented from swaying by the positioning pins 222disposed through the positioning holes 232 and by being clamped betweenthe first sheet 210 and the second sheet 220, so that the problem thatthe sub-filters 234 would fly out due to the deterioration of the glueas in the conventional color wheel can be avoided while the motor 240 isrotating in high speed.

Moreover, when the first sheet 210, the second sheet 220 and the ringfilter 230 are disposed through the positioning portions 246 a to besleeved on the axis 244 so that the positioning portions 246 a aredeformed toward the gap S. After the first sheet 210, the second sheet220, and the ring filter 230 are disposed through the positioningportions 246 a and sleeved on the axis 244, the positioning portions 246a recover substantially to their original shape or position for fixingthe first sheet 210, the second sheet 220 and the ring filter 230 on theturntable 244. In the preferable embodiment, the first sheet 210 and thering filter 230 are homocentric, and the diameter of the homocentriccycle is corresponding to the positioning portions 246 a so that thefirst sheet 210, the second sheet 220 and the ring filter 230 are easyto be sleeved and fixed on the axis 244. The first sheet 210, the secondsheet 220 and the ring filter 230 are therefore avoided from passingoutward through the positioning portion 246 to escape from the motor240.

In the embodiment, the positioning portion 246 includes two portions 246a to fix the first sheet 210, the second sheet 220 and the ring filter230. However, the present invention does not limit the number and typeof the positioning portions 246 a.

The second sheet 220 in the embodiment is disposed on the turntable 242.However, the present invention does not limit the locations of the firstsheet 210 and the second sheet 220 relative to the turntable 242. Inother words, the first sheet 210 and the second sheet 220 can beexchanged so that the first sheet 210 is disposed on the turntable 242.Moreover, the outside diameter of the first sheet 210 is greater thanthat of the second sheet 220, however, the outer diameter of the firstsheet 210 can also be less than or equal to that of the second sheet 220in another embodiment.

Referring to FIG. 2A-2C, in one embodiment, in order to fix the firstsheet 210, the second sheet 220 and the ring filter 230 on the motor 240more firmly, the color wheel 200 further includes a washer 250, disposedthrough the positioning portion 246 and fixed on the axis 244, so thatthe first sheet 210, the second sheet 220 and the ring filter 230 arefixed between the washer 250 and the turntable 242.

In the embodiment, for assembling the color wheel 200 of the embodiment,the first sheet 210, the second sheet 220 and the ring filter 230 arefixed on the motor 240 by the positioning portion 246 of the axis 244 orthe washer 250, but not the glue. Compared to the conventionaltechnology, the assembly is easier and spends less time, and therebyimproves the production efficiency. In addition, if any defects arefound in the ring filter 230, the first sheet 210 or the second sheet220, or other structural problem is found after the assembly, it ispossible to disassemble to replace or repair and then reassemble.

Although the first sheet 210 and the second sheet 220 described aboveare separate parts, in another embodiment of the present invention, thefirst sheet 210 and the second sheet 220 are integrally formed. Theassembly method of color wheel of the embodiment accompanied withfigures will be described below.

FIG. 3 is a schematic block diagram of the assembly method of colorwheel according to one embodiment of the present invention, and FIG. 4Aand FIG. 4B are schematic diagrams illustrating the method of formingthe first sheet and the second sheet. Referring to FIG. 3 and FIG.4A-4B, the assembly method of the present invention includes thefollowing steps: first, at step S110, a ring filter 230 having aplurality of positioning holes 232 is provided.

Next, at step S120 and as shown in FIG. 4A, the ring filter 230 isdisposed in a mold 50, the mold 50 has a cavity 52 suitable forinjecting a mold material. Then, as shown in FIG. 4B, a first sheet 210,a second sheet 220 and a plurality of positioning pins 222 forconnecting the first sheet 210 and the second sheet 220 are formed inthe cavity 52 of the mold 50 using injection molding process, and thepositioning pins 222 are disposed through the positioning holes 232.Accordingly, the time for assembling the first sheet 210, the secondsheet 220 and the ring filter 230 is saved, and the productionefficiency is improved. It should be noted that the present invention isnot limit to the process of forming the first sheet 210 and the secondsheet 220 using injection molding.

Next, as shown in the process S130, a motor is provided, and the firstsheet 210, the second sheet 220 and the ring filter 230 are fixed on themotor. The fixing method can be the aforementioned fixing method,however, the fixing method is not limited as such.

The Second Embodiment

FIG. 5A is an explosion diagram of a color wheel according to a secondembodiment of the present invention, and FIG. 5B is a schematic view ofthe color wheel in FIG. 5A. FIG. 6A and FIG. 6B are respectivelyschematic views of the sub-filter and the carrier table in FIG. 5A, andFIG. 6C is a schematic view of the assembly of the sub-filter and thecarrier table in FIG. 5A. Referring to FIG. 5A and FIG. 5B, the colorwheel 300 in the embodiment includes a carrier table 310, a plurality ofsub-filters 320 and a motor 330. The sub-filters 320 are fixed on thecarrier table 310, and the carrier table 310 is fixed on the motor 330.

Referring to FIG. 5A, FIG. 6A, and FIG. 6B, the sub-filters 320, forexample, form a ring filter, the outline of each sub-filter 320 is, forexample, S-shaped, and each sub-filter 320 has a first notch 322 and asecond notch 324. Moreover, the carrier table 310 has a plurality ofprotrusions 312, and the protrusions 312 are disposed adjacent to theedge of the carrier table 310. In one embodiment, the protrusions 312are disposed on the surrounding edge of the carrier table 310 and it isone of the examples of the protrusions 312 being disposed adjacent tothe edge of the carrier table 310. It should be noted that, although thenumber of the sub-filters 320 in the embodiment is 6 and the number ofthe protrusions 312 is also 6 in order to correspond to the sub-filters320, however, the present invention is not limited to specific number ofthe sub-filters 320 and the protrusions 312. In addition, forillustratively demonstrating the embodiment of the present invention,only three sub-filters 320 are shown in FIG. 6A.

Referring to FIG. 6C, in the embodiment, the sub-filters 320 aredisposed on the carrier table 310 and between the two adjacentprotrusions 312. A part of the side wall of the first notch 322 of eachsub-filter 320 is disposed on the inner wall of one of the two adjacentprotrusions 312, and the side wall of the second notch is disposed onthe outer wall of another positioning protrusion 312.

Referring to FIG. 5A, FIG. 5B and FIG. 6C, in the embodiment, thecarrier table 310 and the sub-filters 320 are fixed on the motor 330.The motor 330 includes a turntable 332 and an axis 334, and apositioning portion 334 a is disposed on the top of the axis 334 so thatthe carrier table 310 and the sub-filters 320 are fixed between theturntable 332 and the positioning portion 334 a. In one embodiment, thepositioning portion 334 a includes for example two portions with a gapformed between the two parts. The diameter of the two portions of thepositioning portion preferably shrinks from the bottom connected to theaxis 334 to the top. Similar to the first embodiment mentioned above,the two portions of the positioning portion are preferably flexible ordeformable for easily assembling the carrier table 310 and thesub-filters 320 on the turntable 332. The turntable 332 may be a part ofthe motor 330, or additional element disposed on the motor 330.Moreover, the color wheel 300 further includes at least a washer 340,disposed through the axis 334, so that the carrier table 310 and thesub-filters 320 can be fixed on the motor 330 more firmly.

In addition, in the embodiment, a motor with a first screw thread and awasher with a second screw thread matching the first screw thread areused to fix the carrier table 310 and the sub-filters 320 between thewasher and the carrier table.

In the color wheel 300 of the embodiment, as the sub-filters 320 aredisposed between the two adjacent protrusions 312 of the carrier table310, the interaction force between the protrusion 312 and the firstnotch 322, the second notch 324 counter the centrifugal force generatedwhen the motor is rotating, and thereby provide better support.Therefore, the sub-filters 320 are properly secured and do not fly outeven while the motor is rotating in high speed. Therefore, the colorwheel 300 of the embodiment has better reliability.

In summary, the embodiments of the color wheel and assembly methodthereof in the present invention has at least one or more of thefollowing advantages:

1. As the positioning pins are disposed through the positioning holesand the sub-filters are fixed by being clamped between the first sheetand the second sheet, the usage of glue can be avoided, therefore, thepossibility of the sub-filters flying out due to the deterioration ofthe glue when the motor is rotating in high speed as in the conventionaltechnology may be effectively reduced.

2. As the sub-filters are disposed between the two adjacent protrusionsof the carrier table, the usage of glue can be avoided, so that thepossibility of the sub-filters from flying out due to the deteriorationof the glue when the motor is rotating in high speed as in the case ofthe conventional technology may be effectively reduced.

3. When assembling, the color wheel is aligned by the positioning holesor by the sub-filters and the positioning protrusions of the carriertable, therefore the assembly is easier and spends less time compared tothe conventional technology, thereby improves production efficiency andthe throughput of the color wheel.

4. As the first sheet and the second sheet are integrally formed, thetime for assembling the first sheet, the second sheet and the ringfilter can be saved, and thereby improves the production efficiency.

5. As the use of glue is not required in the assembly of the color wheelof the present invention, it is easy to disassemble for repairing orreplacing defective components and then reassemble.

6. The positioning protrusions are deformed toward the gap when beingforced, and it is helpful for the first sheet, the second sheet and thering filter to pass through the positioning protrusions directly. Afterthe first sheet, the second sheet, and the ring filter passing throughthe positioning protrusions, the positioning protrusions can fix thefirst sheet, the second sheet, and the ring filter on the motor.Therefore, the assembly method of the color wheel is simpler compared tothe conventional art.

The foregoing description of the preferred embodiment of the inventionhas been presented for purposes of illustration and description. It isnot intended to be exhaustive or to limit the invention to the preciseform or to exemplary embodiments disclosed. Accordingly, the foregoingdescription should be regarded as illustrative rather than restrictive.Obviously, many modifications and variations will be apparent topractitioners skilled in this art. The embodiments are chosen anddescribed in order to best explain the principles of the invention andits best mode practical application, thereby to enable persons skilledin the art to understand the invention for various embodiments and withvarious modifications as are suited to the particular use orimplementation contemplated. It is intended that the scope of theinvention be defined by the claims appended hereto and their equivalentsin which all terms are meant in their broadest reasonable sense unlessotherwise indicated. Therefore, the term “the invention”, “the presentinvention” or the like is not necessary limited the claim scope to aspecific embodiment, and the reference to particularly preferredexemplary embodiments of the invention does not imply a limitation onthe invention, and no such limitation is to be inferred. The inventionis limited only by the spirit and scope of the appended claims. Theabstract of the disclosure is provided to comply with the rulesrequiring an abstract, which will allow a searcher to quickly ascertainthe subject matter of the technical disclosure of any patent issued fromthis disclosure. It is submitted with the understanding that it will notbe used to interpret or limit the scope or meaning of the claims. Anyadvantages and benefits described may not apply to all embodiments ofthe invention. It should be appreciated that variations may be made inthe embodiments described by persons skilled in the art withoutdeparting from the scope of the present invention as defined by thefollowing claims. Moreover, no element and component in the presentdisclosure is intended to be dedicated to the public regardless ofwhether the element or component is explicitly recited in the followingclaims.

1. A color wheel, comprising: a first sheet; a second sheet disposedopposite to the first sheet and comprising a plurality of positioningpins; a ring filter comprising a plurality of positioning holes,disposed between the first sheet and the second sheet, wherein thepositioning pins are disposed through the positioning holes andconnected to the first sheet; and a motor, comprising a turntable and anaxis connected to the turntable, wherein a first positioning portion anda second positioning portion are disposed on the top of the axis, and agap is disposed between the first positioning portion and secondpositioning portion, wherein, the first sheet, the second sheet and thering filter are disposed through the positioning portions and sleeved onthe axis for fixing the first sheet, the second sheet, and the ringfilter on the turntable.
 2. The color wheel as claimed in claim 1,wherein the ring filter comprises a plurality of sub-filters, and thepositioning holes are disposed in the sub-filters respectively.
 3. Thecolor wheel as claimed in claim 1, wherein the first sheet and thesecond sheet are integrally formed.
 4. The color wheel as claimed inclaim 1, further comprising a washer disposed through the axis, and thefirst sheet, the second sheet, and the ring filter are disposed betweenthe washer and the turntable.
 5. The color wheel as claimed in claim 1,wherein at least one of the first positioning portion and the secondpositioning portion is flexible.
 6. The color wheel as claimed in claim1, wherein the first positioning portion and the second positioningportion is deformable.
 7. An assembly method of color wheel, comprising:providing a ring filter, wherein the ring filter comprises a pluralityof positioning holes; disposing the ring filter in a mold, and forming afirst sheet, a second sheet and a plurality of positioning pins in themold, wherein the positioning pins are adopted for connecting the firstsheet and the second sheet through the positioning holes; and connectingthe first sheet, the second sheet and the ring filter to a motor.
 8. Theassembly method of color wheel as claimed in claim 7, wherein the firstsheet, the second sheet, and the positioning pins are formed byperforming an injection molding process.
 9. A color wheel, comprising: acarrier table, having a plurality of protrusions disposed adjacent to aperipheral edge of the carrier table; a plurality of sub-filters, eachsub-filter disposed on the carrier table and between the two adjacentprotrusions, comprising a first notch and a second notch, wherein a partof a side wall in the first notch of each sub-filter is disposed againstan inner wall of one of the two adjacent protrusions, and a part of aside wall in the second notch is disposed against an outer wall ofanother protrusion; and a motor, fixed to the carrier table and thesub-filters.
 10. The color wheel as claimed in claim 9, wherein themotor comprises a turntable and an axis connected to the turntable, andthe carrier table is sleeved on the axis.
 11. The color wheel as claimedin claim 10, wherein a first positioning portion and a secondpositioning portion are disposed on a top of the axis for fixing thesub-filters and the carrier table on the turntable.
 12. The color wheelas claimed in claim 11, wherein a diameter of the first positioningportion and the second positioning portion shrinks from the bottom tothe top.
 13. The color wheel as claimed in claim 11, further comprisinga washer, sleeved on the axis, wherein the sub-filters and the carriertable are disposed between the washer and the turntable.
 14. The colorwheel as claimed in claim 10, further comprising a washer, wherein theaxis has a first screw thread and a second screw thread coupled to thefirst screw thread is disposed on an inner wall of the washer, and thewasher is screwed onto the axis for fixing the sub-filters and thecarrier table between the washer and the turntable.
 15. The color wheelas claimed in claim 9, wherein the sub-filters comprise S-shape.
 16. Thecolor wheel as claimed in claim 11, wherein at least one of the firstpositioning portion and the second positioning portion is flexible. 17.The color wheel as claimed in claim 11, wherein the first positioningportion and the second positioning portion are deformable.